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Since we took a turn towards tq bands, here's how it worked out.
Old engines 663 ft lbs @ 4600 peak 594 ft lbs @ 5800 New intake/ carb/ cam with highest hp and lowest tq. 658 ft lbs @ 4600 666 ft lbs @ 5100 peak 635 ft lbs @ 5800 Final combo as installed 662 ft lbs @ 4600 673 ft lbs @ 5300 peak 627 ft lbs @ 5800 So with making the types of changes available to Tim the torque peak moved up 700 rpm. Torque was down the entire range prior to 4600. Edit- standby I transposed some numbers... All fixed |
Originally Posted by SB
(Post 4517278)
ID 2.5" ? If so, yikes !
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1 Attachment(s)
Originally Posted by bck
(Post 4517280)
Since we took a turn towards tq bands, here's how it worked out.
Old engines 663 ft lbs @ 4600 peak 594 ft lbs @ 5800 New intake/ carb/ cam with highest hp and lowest tq. 658 ft lbs @ 4600 666 ft lbs @ 5100 peak 635 ft lbs @ 5800 Final combo as installed 662 ft lbs @ 4600 673 ft lbs @ 5300 peak 627 ft lbs @ 5800 So with making the types of changes available to Tim the torque peak moved up 700 rpm. Torque was down the entire range prior to 4600. Edit- standby I transposed some numbers... All fixed |
Originally Posted by KWright
(Post 4517269)
Exactly thats why you dyno in full boat trim[ATTACH=CONFIG]563519[/ATTACH]
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Originally Posted by sutphen 30
(Post 4517287)
those your headers,,the flow thru them suck.we put them on a fountain w/ blowers,,lost 4-6mph(been a while).went back to the gills,,and back to the original top speed.
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Mine were dyno'd in full boat trim with the CMI sweepers, off the dyno straight into the boat......several dyno shops cant accommodate wet exhaust.
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Originally Posted by 33outlawsst
(Post 4517291)
Mine were dyno'd in full boat trim with the CMI sweepers, off the dyno straight into the boat......several dyno shops cant accommodate wet exhaust.
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Originally Posted by KWright
(Post 4517286)
Not far from mine only mine carried a little higher[ATTACH=CONFIG]563525[/ATTACH]
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Originally Posted by KWright
(Post 4517225)
The question that was never addressed. what do you have to do to raise your torque curve 400-600 rpm? If you want more top end out of your boat stop chasing peak HP. and work on extending your torque curve!
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Originally Posted by KWright
(Post 4517269)
Exactly thats why you dyno in full boat trim[ATTACH=CONFIG]563519[/ATTACH]
I did... https://www.youtube.com/watch?v=F5sQmgFHOf4 |
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